Orris oil
oil obtained from the root of iris × germanica
Orris oil (orris butter or Beurre d'Iris) is an essential oil derived from irises, particularly Iris germanica. It is sometimes used as a flavoring agent and as an ingredient in perfume production. It can also have uses in body lotions.
Storage and use
The rhizomes (roots) must be stored in a cool, dry location for three years to develop the scent. The fresh rhizomes are almost odorless.
The distilled oil solidifies in the receiver as a wax-like and cream-colored mass known as orris concrete. It is solid because of the high content of myristic acid (85%), a white stearin-like substance.
Orris concrete melts when it reaches around body temperature. It has a woody, fatty-oily, yet distinctly violet-like odor: sweet floral, warm & tenacious with a fruity undertone. Orris concrete is used in perfumery when the presence of myristic acid is not prohibitive, e.g.: in soap perfumes where the weak acid only acts as a fixative.
The public source identifies “Orris oil” as oil obtained from the root of iris × germanica. This brief keeps that definition visible, then builds a research path around Orris, obtained and root.
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This entry incorporates text from “Orris oil” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.